DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The TP0456 microcomputer
based Primary-Secondary architecture found in the TI-54 calculator. The CD4551 is the Primary chip, the smaller CD4555 the Secondary chip. |
The TP0456 microcomputer
based Primary-Secondary architecture found in the TI-57 LCD calculator. The CD4572 is the Primary chip, the smaller CD4555 the Secondary chip. |
The TP0456 microcomputer
based Primary-Secondary architecture found in the TI-57 LCD calculator. The CD4572 is the Primary chip, the smaller CD4555 the Secondary chip. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, June 13, 2003. No reprints without written permission.